Fleetguard · HF Hydraulic · return line
HF6204 filter element: specifications & equivalents
The HF6204 is a Fleetguard return-line hydraulic filter element, sized 93.22 × 144.53 mm OD × length, rated at 12 µm class (TWA 12 µm at β=2 per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 93.22 × 144.53 mm
Filtration rating 12 µm nom.
Beta rating TWA 12 µm at β=2 per ISO 16889
Thread 1.00 1/8-16 UN-2B
Line type return
Catalog verified. Parameters extracted from the manufacturer’s electronic
catalog / official interchange document and checked 2026-09-28. Confidence score 0.90.
Specifications and cross-references are taken from the Fleetguard online catalog API. Where both TWA and Beta ratings are published the conventions differ — verify cleanliness targets, collapse rating and seal configuration against the current Fleetguard data sheet before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | return line |
| Filtration rating | 12 µm |
| Rating basis | nominal |
| Beta ratio | TWA 12 µm at β=2 per ISO 16889 |
| Outside diameter OD | 93.22 mm |
| Length | 144.53 mm |
| Thread / connection | 1.00 1/8-16 UN-2B |
| End caps | spin-on baseplate with attached gasket |
| Flow direction | outside-in |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6204 |
| Source catalog | Cummins Filtration / Fleetguard: Fleetguard online product catalog (fleetguard.com) |
| Last verified | 2026-09-28 |
Sources: Cummins Filtration / Fleetguard — Fleetguard online product catalog (fleetguard.com) — accessed 2026-09-28.
Fleetguard® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Fleetguard distributor.
Dimensions & series range
| Outside diameter | 93.22 mm (3.670 in) |
| Overall length | 144.53 mm (5.690 in) |
All 93×145 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1664 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1664 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 196588A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 196588A as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 197537A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 197537A as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2078 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2078 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2950026 page in verification queue | UFI | partial | Fleetguard's online catalog lists 2950026 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 42021 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 42021 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 49551 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 49551 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 4T6915 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 4T6915 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 51664 | WIX Filters | partial | Fleetguard's online catalog lists 51664 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 573083 | Eaton / Internormen | partial | Fleetguard's online catalog lists 573083 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 601876 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 601876 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 62200D page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 62200D as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 62200G2 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 62200G2 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 6950026 page in verification queue | UFI | partial | Fleetguard's online catalog lists 6950026 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 736886 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 736886 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 737809 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 737809 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85664 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85664 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 893910 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 893910 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8D114955 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 8D114955 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8DA4955 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 8DA4955 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92664 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92664 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92821417 page in verification queue | UFI | partial | Fleetguard's online catalog lists 92821417 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AH80061 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AH80061 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT79590 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT79590 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ BT260 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists BT260 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ BT8314 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists BT8314 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ D114955 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists D114955 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ D49551 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists D49551 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FH51 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FH51 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0620400 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0620400 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0620400J page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0620400 J as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ HF0620400JX page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0620400JX as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ HF0620400LKM page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0620400_LKM as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF734 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF734 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF993 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF993 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LFH4943 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LFH4943 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P1657 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P1657 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P734 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P734 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PF1033 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PF1033 as an interchange for HF6204. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ WD10004 | MANN-FILTER | partial | MANN-FILTER's online catalog lists HF6204 (FLEETGUARD/CUMMINS FILTRATION) as a comparison number for WD10004. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the HF6204 model number is decoded
- HF6204Fleetguard HF-series hydraulic spin-on filter part number.
- 144.53 mmOverall height.
- 93.22 mmLargest outside diameter.
- 1.00 1/8-16 UN-2BSpin-on mounting thread.
- TWA 12 µm at β=2 per ISO 16889Published efficiency ratings.
Typical equipment & applications
- Construction, agricultural and industrial hydraulic circuits
- Mobile-equipment hydraulic return and pressure lines
Selection pitfalls — read before you substitute
- A return-line element is not a pressure-line element: return cartridges (BN4HC low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
- This element has no integral bypass — opening pressure is set by the housing’s reusable bypass valve. Confirm the valve setting (commonly 3.4 bar) is present before fitting.
- “10 µm nominal” and “12 µm at β1000” can describe the very same media — one is reported at β≥200, the other at β≥1000 per ISO 16889. Compare ratings at the same Beta test point, not just the printed micron number.
- Nitrile (NBR) seals are standard for mineral hydraulic oil but fail early in some phosphate-ester fluids and at sustained high temperature; verify seal compound against the fluid data sheet (fluorocarbon/Viton executions may be required).
- End-cap geometry and the number/position of O-rings block interchange even when OD and length match — visually compare end caps before fitting, especially with aftermarket cartridges.
Frequently asked questions
What are the dimensions of the HF6204 filter element?
The published envelope is 93.22 mm OD × 144.53 mm length (3.670 × 5.690 in). Confirm against the housing drawing before ordering.
What micron rating does HF6204 use?
This element is rated 12 µm (nominal class) — TWA 12 µm at β=2 per ISO 16889. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the HF6204 filter element?
40 partial match(es) requiring parameter review
How do I read the HF6204 part number?
See the designation decoder above: each segment of HF6204 encodes size, line type, filtration grade and media/collapse execution.
Is a same-envelope aftermarket element always a drop-in replacement?
No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.
How often should a hydraulic return-line element be replaced?
Replace at the housing manufacturer’s recommended differential-pressure setting (commonly signalled by a clogging indicator), or on a time-based service interval when no indicator is fitted — never wait for bypass to open continuously, because unfiltered oil then reaches the valves.
Same-envelope elements from other brands
View full interchange →These 1 catalog element(s) share the 93×145 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
Other models in the HF Hydraulic series
All 2621 →Reviewed & verified by the ElementRef engineering desk against Cummins Filtration / Fleetguard on 2026-09-28. Read our editorial & correction policy.